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Alkali Metal-Silica Gel

Take The Danger Out Of Reduction Chemistry

Metallic sodium and potassium, as well as their alloys, are useful for their strong chemical reduction properties. However, their instability when exposed to oxygen, and their violent reaction with water is a severe fire hazard in the laboratory and in production facilities.

SiGNa Chemistry’s stabilized alkali metal-silica gel powders (M-SG) transform alkali metals into free-flowing, non-pyrophoric powders capable of performing reductions in a safe, streamlined process. These powders accelerate kinetics and reduce the costs of drug development and industrial chemistry while replacing hazardous conditions, such as the need for liquid ammonia, with sustainable, “green” chemical pathways.

Product Advantages

Yield:
Retains the highest reducing ability of the parent metal
Kinetics:
Performs the fastest reduction reactions at room temperature and pressure
Ease of Use:
Removes impurities through binding and does not require liquid ammonia or cryogenic temperatures
Safety:
Does not ignite spontaneously in air and does not react with oxygen gas
Cost:
Lower insurance, shipping, and safety expenses associated with its use on the industrial scale

SiGNa’s alkali metal-silica gel have metal loadings up to 40 wt.% and are available in 3 varieties:

  • Stage 0 M-SG: Pyrophoric, free-flowing, shiny black powder capable of reducing Teflon® in its solid state. This material is easily handled under Nitrogen.
  • Stage I M-SG: Dry air-stable, free-flowing, non-pyrophoric black powder that retains the reactivity equivalent of its parent alkali metal.
  • Stage II M-SG: Air-stable, free-flowing, non-pyrophoric black powder that contains nano-crystalline domains of metal silicide. The reactivity is strong enough to reduce simple molecules and water.

View SiGNa Products by the reactions they perform.

New Discoveries

Currently SiGNa is working on the next element in the alkali metal family, Lithium. A number of new discoveries have been made. Read More

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